我正在将 OpenAPI 与我的项目集成,当我访问 url:
http://127.0.0.1:11014/swagger-ui/index.html
时,显示如下错误:
Unable to render this definition
The provided definition does not specify a valid version field.
Please indicate a valid Swagger or OpenAPI version field. Supported version fields are swagger: "2.0" and those that match openapi: 3.0.n (for example, openapi: 3.0.0).
这是 OpenAPI 配置:
package misc.config.openapi;
import io.swagger.v3.oas.models.ExternalDocumentation;
import io.swagger.v3.oas.models.OpenAPI;
import io.swagger.v3.oas.models.info.Info;
import io.swagger.v3.oas.models.info.License;
import org.springdoc.core.GroupedOpenApi;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
/**
* https://springdoc.org/
* https://github.com/springdoc/springdoc-openapi
*/
@Configuration
public class OpenApiConfig {
@Bean
public GroupedOpenApi fortuneApi() {
GroupedOpenApi.Builder builder = GroupedOpenApi.builder()
.pathsToMatch("/fortune/**")
.group("dddd");
GroupedOpenApi groupedOpenApi = builder.build();
return groupedOpenApi;
}
@Bean
public OpenAPI fortuneAPI() {
return new OpenAPI()
.info(new Info().title("Fortune API")
.description("Spring shop sample application")
.version("v0.0.1")
.license(new License().name("Apache 2.0").url("http://springdoc.org")))
.externalDocs(new ExternalDocumentation()
.description("SpringShop Wiki Documentation")
.url("https://springshop.wiki.github.org/docs"));
}
}
我已阅读问题Swagger..无法呈现此定义提供的定义未指定有效的版本字段并尝试了答案,两者均无效。我应该怎么做才能指定版本?这是依赖关系:
api "org.springdoc:springdoc-openapi-ui:1.6.9"
我做了一个最小的重现,发现正常响应是json对象,但问题响应返回字符串。这是正确的回答:
{
"openapi": "3.0.1",
"info": {
"title": "Fortune API",
"description": "Spring shop sample application",
"license": {
"name": "Apache 2.0",
"url": "http://springdoc.org"
},
"version": "v0.0.1"
},
"externalDocs": {
"description": "SpringShop Wiki Documentation",
"url": "https://springshop.wiki.github.org/docs"
},
"servers": [
{
"url": "http://127.0.0.1:11018",
"description": "Generated server url"
}
],
"paths": {},
"components": {}
}
这是我项目中的问题响应:
"{\"openapi\":\"3.0.1\",\"info\":{\"title\":\"Fortune API\",\"description\":\"Spri......
最后我发现我改变了json转换器导致了这个问题,这是一个解决方法:
@EnableWebMvc
@Configuration
public class WebConvertConfig implements WebMvcConfigurer {
@Override
public void configureMessageConverters(List<HttpMessageConverter<?>> converters) {
MappingJackson2HttpMessageConverter jackson2HttpMessageConverter = new MappingJackson2HttpMessageConverter();
converters.add(new StringHttpMessageConverter());
}
}
这个
StringHttpMessageConverter
应该是第一个添加到转换器中的。我认为这是openapi的设计问题导致其难以使用。更多信息请点击这里:
我遇到了同样的事情,但原因不同。端点
v3/api-docs
返回一个base64字符串而不是json。 (类似于:eyJvcGVuYXBpIjoiMy4wLjEiLCJpbmZvIjp7InRpdGxlIjoiT3BlbkFQSSBkZWZpbml0aW9uIiwid..
)。
经过一番搜索,我发现当覆盖默认的 spring-boot 注册时
HttpMessageConverter
,您还应该注册 ByteArrayHttpMessageConverter 以获得适当的 springdoc-openapi 支持。
converters.add(new ByteArrayHttpMessageConverter());
converters.add(new MappingJackson2HttpMessageConverter(jacksonBuilder.build()));
注意:注册 HttpMessageConverters 时,顺序非常重要。
参考资料: